Sony XBA-BT75 Operating Instructions Manual page 14

Headset usage hours*
Status
Communication time
(including music
playback time) (up to)
Standby time (up to)
* This may vary, depending on ambient
temperature or conditions of use.
Checking the remaining
charge of the headset battery
When turning on the headset, the
indicator (blue) flashes twice, and then
the indicator (red) flashes. Check the
remaining charge by the number of
times the indicator (red) flashes.
Indicator (red)
3 times
2 times
1 time
When the battery is almost empty
The indicator (blue) lights up.
When the battery becomes empty, a
beep sounds and the headset will turn
off automatically.
1
US
Approx.
usage hours
3.5 hours
400 hours
Status
Full
Mid
Low (needs to be
charged)
Checking the remaining
charge of the carrying case
battery
When you press the battery status
check button on the rear side of the
carrying case, the battery status
indicator flashes. Check the remaining
charge by the number of times the
indicator flashes.
Note
You cannot check the remaining charge of
the carrying case battery while charging.
Indicator
3 times
2 times
1 time
When the carrying case battery is fully
charged, the headset can be fully
charged about 2.5 times*.
* This may vary, depending on ambient
temperature or conditions of use.
Status
Full
Mid
Low (needs to be
charged)